diff --git a/bits/67_wsxml.js b/bits/67_wsxml.js
index e4b2116..e6400f9 100644
--- a/bits/67_wsxml.js
+++ b/bits/67_wsxml.js
@@ -2,7 +2,7 @@ function parse_ws_xml_dim(ws/*:Worksheet*/, s/*:string*/) {
 	var d = safe_decode_range(s);
 	if(d.s.r<=d.e.r && d.s.c<=d.e.c && d.s.r>=0 && d.s.c>=0) ws["!ref"] = encode_range(d);
 }
-var mergecregex = /<(?:\w:)?mergeCell ref="[A-Z0-9:]+"\s*[\/]?>/g;
+var mergecregex = /<(?:\w:)?mergeCell ref=["'][A-Z0-9:]+['"]\s*[\/]?>/g;
 var sheetdataregex = /<(?:\w+:)?sheetData[^>]*>([\s\S]*)<\/(?:\w+:)?sheetData>/;
 var hlinkregex = /<(?:\w:)?hyperlink [^>]*>/mg;
 var dimregex = /"(\w*:\w*)"/;
diff --git a/bits/80_parseods.js b/bits/80_parseods.js
index 3d5382c..f27548b 100644
--- a/bits/80_parseods.js
+++ b/bits/80_parseods.js
@@ -636,10 +636,13 @@ function parse_content_xml(d/*:string*/, _opts, _nfm)/*:Workbook*/ {
 			case 'help-message': break; // 9.4.6 <table:
 			case 'error-message': break; // 9.4.7 <table:
 			case 'database-ranges': break; // 9.4.14 <table:database-ranges>
+
+			/* 9.5 Filters */
 			case 'filter': break; // 9.5.2 <table:filter>
 			case 'filter-and': break; // 9.5.3 <table:filter-and>
 			case 'filter-or': break; // 9.5.4 <table:filter-or>
 			case 'filter-condition': break; // 9.5.5 <table:filter-condition>
+			case 'filter-set-item': break; // 9.5.6 <table:filter-condition>
 
 			case 'list-level-style-bullet': break; // 16.31 <text:
 			case 'list-level-style-number': break; // 16.32 <text:
diff --git a/types/index.d.ts b/types/index.d.ts
index e740d8a..aabdd4b 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -151,8 +151,13 @@ export interface UTCOption {
     UTC?: boolean;
 }
 
+export interface DenseOption {
+    /** If true, generate dense-mode worksheets */
+    dense?: boolean;
+}
+
 /** Options for read and readFile */
-export interface ParsingOptions extends UTCOption, CommonOptions {
+export interface ParsingOptions extends UTCOption, CommonOptions, DenseOption {
     /** Input data encoding */
     type?: 'base64' | 'binary' | 'buffer' | 'file' | 'array' | 'string';
 
@@ -239,9 +244,6 @@ export interface ParsingOptions extends UTCOption, CommonOptions {
     /** If true, preserve _xlfn. prefixes in formula function names */
     xlfn?: boolean;
 
-    /** If true, generate dense-mode worksheets */
-    dense?: boolean;
-
     /**
      * For single-sheet formats (including CSV), override the worksheet name
      * @default "Sheet1"
@@ -275,6 +277,9 @@ export interface WritingOptions extends CommonOptions {
      */
     compression?: boolean;
 
+    /** Overwride theme XML when exporting to XLSX/XLSM/XLSB */
+    themeXLSX?: string;
+
     /**
      * Suppress "number stored as text" errors in generated files
      * @default true
@@ -841,7 +846,7 @@ export interface UTCDateOption {
     UTC?: boolean;
 }
 
-export interface AOA2SheetOpts extends CommonOptions, UTCDateOption, DateNFOption {
+export interface AOA2SheetOpts extends CommonOptions, UTCDateOption, DateNFOption, DenseOption {
     /**
      * Create cell objects for stub cells
      * @default false
@@ -851,7 +856,7 @@ export interface AOA2SheetOpts extends CommonOptions, UTCDateOption, DateNFOptio
 
 export interface SheetAOAOpts extends AOA2SheetOpts, OriginOption {}
 
-export interface JSON2SheetOpts extends CommonOptions, UTCDateOption, DateNFOption, OriginOption {
+export interface JSON2SheetOpts extends CommonOptions, UTCDateOption, DateNFOption, OriginOption, DenseOption {
     /** Use specified column order */
     header?: string[];